CONTROL METHOD OF FUEL FLOW AT START OF GAS TURBINE UNIT Russian patent published in 2011 - IPC F02C9/26 

FIELD: engines and pumps.

SUBSTANCE: invention can be used in electronic hydro mechanical automatic control systems (ACS) of gas turbine engines (GTE). In addition, gas temperature change speed after compressor turbine and rotation frequency of rotor of turbo-compressor is controlled, if gas temperature decrease speed is below the first pre-set value and rotation frequency decrease speed of turbo-compressor rotor is below the second pre-set value during pre-set time interval determined by calculation-experimental method and specified during GTU operation, "KC failure" signal is shaped and GTU start is stopped.

EFFECT: higher operating reliability of GTU owing to improving operating quality of ACS determines KC failure during GTU start, which allows avoiding GTU turbine overheat and improves GTU operating reliability.

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